Cutter clamping limiting mechanism

Abstract

The utility model provides a clamping cutter limiting mechanism, which belongs to the field of mechanical equipment and comprises a main frame, a clamping cutter and a hydraulic oil cylinder, one end of the hydraulic oil cylinder is connected to one end of the main frame, the other end of the hydraulic oil cylinder is connected with the upper end of the clamping cutter, the upper portion of the clamping cutter is rotatably connected to the other end of the main frame, and a mounting seat is arranged on the main frame. The mounting seat is arranged on one side of the clamping cutter, a limiting plate is arranged on the mounting seat, and the limiting plate is connected with one side of the mounting seat through a pressing plate. According to the utility model, the hydraulic oil cylinder shrinks to drive the clamping cutter to rotate towards the left side until the surface of the clamping cutter impact plate on the clamping cutter impacts the surface of the limiting plate, and as a gap is formed between the pressing plate and the long limiting block of the limiting plate and the mounting block of the mounting seat is provided with an inclined surface, the limiting plate is ensured not to fall towards one side of the pressing plate after being impacted, and the pressing plate is prevented from deforming or loosening; therefore, the service life of the cutter clamping limiting mechanism is prolonged, and the cutter clamping limiting mechanism is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to a clamping knife limiting mechanism. Background Art

[0002] The clamping knife limiting mechanism is used on a logging machine, and its function is to limit the opening size of the clamping knife of the logging machine. Due to frequent impacts, a stable and reliable limiting device is required. Currently, the limit of the clamping knife is a screw. As Figure 1 shown, in the clamping knife limiting mechanism, the limit is a screw. During the operation process, the clamping knife often opens and impacts the limit screw. Since the impact area between the limit screw and the clamping knife is very small, the impact surface between the limit screw and the clamping knife is prone to deformation and damage, resulting in a short service life of the limit screw. Therefore, a clamping knife limiting mechanism is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a clamping knife limiting mechanism to solve the technical problem that the limit screw of the existing clamping knife limiting mechanism is prone to deformation and damage.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] A clamping knife limiting mechanism includes a main frame, a clamping knife and a hydraulic cylinder. One end of the hydraulic cylinder is connected to one end of the main frame, the other end of the hydraulic cylinder is connected to the upper end of the clamping knife, the upper part of the clamping knife is rotatably connected to the other end of the main frame, an installation seat is arranged on the main frame, and the installation seat is arranged on one side of the clamping knife. A limiting plate is arranged on the installation seat, and the limiting plate is connected to one side of the installation seat through a pressing plate.

[0006] Further, a hydraulic cylinder support is arranged on the side surface of one end of the main frame, and one end of the hydraulic cylinder is connected to the hydraulic cylinder support.

[0007] Further, the clamping knife is rotatably connected to the side surface of the other end of the main frame through a rotating shaft, and a clamping knife impact plate is arranged on one side of the upper end of the clamping knife.

[0008] Further, the installation seat includes an installation block and an installation plate. One side of the installation block is set as an inclined surface, one end of the installation plate is connected to one end of the inclined surface, a first connection hole is arranged on the installation block, and the pressing plate is arranged on one side of the installation block.

[0009] Further, a first screw passes through the pressing plate and the first connection hole of the installation block, and connects the pressing plate and the installation block to the main frame.

[0010] Further, the limiting plate includes a long limiting block and two short limiting blocks. The two short limiting blocks are respectively connected to one side of both ends of the long limiting block. A second connection hole is arranged on the long limiting block, and the upper end of the long limiting block is set as an inclined surface.

[0011] Furthermore, the inner side of the long limiting block is in contact with the inclined surface of the mounting block, and one side of the long limiting block is in contact with the inner side of the mounting plate. The inner sides of the two short limiting blocks are respectively in contact with both sides of the mounting plate.

[0012] Furthermore, the second screw passes through the pressing plate, the second connection hole of the long limiting block and the mounting plate, and connects the pressing plate, the long limiting block and the mounting plate to the main frame. A gap is provided between the pressing plate and the long limiting block.

[0013] Furthermore, a first gasket and a second gasket are sequentially arranged between the long limiting block and the mounting block. One side of the first gasket is in contact with the inner side of the long limiting block, the other side of the first gasket is in contact with one side of the second gasket, and the other side of the second gasket is in contact with the inclined surface of the mounting block.

[0014] The utility model has the following beneficial effects due to the adoption of the above technical solutions:

[0015] 1. In the utility model, when the hydraulic cylinder contracts, it drives the clamping knife to rotate to the left until the surface of the clamping knife impact plate on the clamping knife impacts the surface of the limiting plate. Since there is a gap between the pressing plate and the long limiting block of the limiting plate, and the mounting block of the mounting seat is provided with an inclined surface, it is ensured that the limiting plate will not fall towards the pressing plate side after being impacted, preventing the pressing plate from being deformed or loosened, thereby prolonging the service life of the clamping knife limiting mechanism, and the clamping knife limiting mechanism is stable and reliable.

[0016] 2. In the utility model, by setting the limiting plate to play a limiting role, the impact area with the clamping knife impact plate can be increased. The limiting plate can be disassembled, is easy to replace, and has high strength. The position of the limiting plate is also adjusted by setting gaskets, so that the surface of the clamping knife impact plate impacts the surface of the limiting plate, thereby prolonging the service life. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the current clamping knife limiting mechanism;

[0018] Figure 2 is a schematic diagram of the clamping knife of the clamping knife limiting mechanism of the utility model in the open state;

[0019] Figure 3 is a schematic diagram of the clamping knife of the clamping knife limiting mechanism of the utility model in the closed state;

[0020] Figure 4 is a disassembled schematic diagram of the clamping knife of the clamping knife limiting mechanism of the utility model;

[0021] Figure 5 is a schematic structural diagram of the mounting seat of the utility model;

[0022] Figure 6 is a side view of the mounting seat of the utility model;

[0023] Figure 7 is a schematic structural view of the limit plate of the present utility model;

[0024] Figure 8 is a schematic view showing the connection between the limit plate of the present utility model and the mounting base;

[0025] Figure 9 is a sectional view of the tool clamping limit mechanism of the present utility model;

[0026] Figure 10 is Figure 9 an enlarged view of part I in

[0027] In the drawings, 1 - limit plate, 2 - mounting base, 21 - mounting block, 22 - mounting plate, 23 - inclined surface, 24 - first connection hole, 3 - first gasket, 4 - second gasket, 5 - pressing plate, 6 - tool clamping impact plate, 7 - hydraulic cylinder, 8 - first screw, 9 - second screw, 10 - main frame, 11 - rotating shaft, 13 - long limit block, 14 - two short limit blocks, 15 - second connection hole, 16 - inclined surface, 17 - hydraulic cylinder support, 20 - tool clamp. Detailed implementation manners

[0028] To make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following gives preferred embodiments with reference to the accompanying drawings and further elaborates on the present utility model in detail. However, it should be noted that many details listed in the specification are only for enabling the reader to have a thorough understanding of one or more aspects of the present utility model, and these aspects of the present utility model can be implemented even without these specific details.

[0029] As Figure 2-3 shown, a tool clamping limit mechanism includes a main frame 10, a tool clamp 20 and a hydraulic cylinder 7. One end of the hydraulic cylinder 7 is connected to one end of the main frame 10, the other end of the hydraulic cylinder 7 is connected to the upper end of the tool clamp 20, the upper part of the tool clamp 20 is rotatably connected to the other end of the main frame 10. A mounting base 2 is provided on the main frame 10, and the mounting base 2 is arranged on one side of the tool clamp 20. A limit plate 1 is provided on the mounting base 2, the limit plate 1 limits the tool clamp 20, and the limit plate 1 and one side of the mounting base 2 are connected by a pressing plate 5, and the limit plate 1 and the mounting base 2 are fixed by the pressing plate 5. When the tool clamp 20 is opened, the hydraulic cylinder 7 contracts, driving the tool clamp 20 to rotate to the left, and one side of the upper part of the tool clamp 20 impacts the limit plate 1; when the tool clamp 20 is closed, the hydraulic cylinder 7 extends, driving the tool clamp 20 to rotate to the right, and the tool clamp 20 moves away from the limit plate 1.

[0030] As Figure 4As shown in the figure, a hydraulic cylinder support 17 is provided on the side of one end of the main frame 10. One end of the hydraulic cylinder 7 is connected to the hydraulic cylinder support 17, and the hydraulic cylinder support 17 is used to support and connect the hydraulic cylinder 7. The knife clamp 20 is rotatably connected to the side of the other end of the main frame 10 through a rotating shaft 11, and the knife clamp can rotate through the rotating shaft 11. A knife clamp impact plate 6 is provided on one side of the upper end of the knife clamp 20. The knife clamp impact plate 6 can increase the impact surface with the limit plate and reduce the deformation or wear of the limit plate.

[0031] As Figure 5-6 shown, the mounting seat 2 includes a mounting block 21 and a mounting plate 22. One side of the mounting block 21 is provided with an inclined surface 23, and one end of the mounting plate 22 is connected to one end of the inclined surface 23. The mounting block 21 is provided with a first connection hole 24. The pressing plate 5 is arranged on one side of the mounting block 21. The mounting block 21 and the mounting plate 22 are integrally formed, and the mounting seat 2 has an L-shaped structure. The first screw 8 passes through the pressing plate 5 and the first connection hole 24 of the mounting block 21, and connects the pressing plate 5 and the mounting block 21 to the main frame 10. The pressing plate 5 and the mounting seat 2 are fixed to the main frame 10 through the first screw 8. During impact, the stability of the knife clamp limiting mechanism is ensured.

[0032] As Figure 7 shown, the limit plate 1 includes a long limit block 13 and two short limit blocks 14. The two short limit blocks 14 are respectively connected to one side of both ends of the long limit block 13. The long limit block 13 is provided with a second connection hole 15. The upper end of the long limit block 13 is provided with an inclined surface 16 to ensure that when the hydraulic cylinder 7 contracts, the hydraulic cylinder 7 does not collide with the limit block 1. The long limit block 13 and the two short limit blocks 14 are integrally formed, and the limit plate 1 has a ]-shaped structure. The limit plate 1 can be disassembled, is easy to replace, and has high strength.

[0033] As Figure 8 shown, the inner side of the long limit block 13 is in contact with the inclined surface 23 of the mounting block 21, and one side of the long limit block 13 is in contact with the inner side of the mounting plate 22. The inner sides of the two short limit blocks 14 are respectively in contact with both sides of the mounting plate 22 to ensure the stable connection between the limit plate 1 and the mounting seat 2. The second screw 9 passes through the pressing plate 5, the second connection hole 15 of the long limit block 13 and the mounting plate 22, and connects the pressing plate 5, the long limit block 13 and the mounting plate 22 to the main frame 10. The pressing plate 5, the limit plate 1 and the mounting seat 2 are fixed to the main frame 10 through the second screw 9. During impact, the stability of the knife clamp limiting mechanism is ensured. A gap is provided between the pressing plate 5 and the long limit block 13 to ensure that when the knife clamp 20 impacts the limit plate 1, the limit plate 1 falls towards the mounting plate 22 side of the mounting seat 2.

[0034] As Figure 9-10As shown in the figure, a first gasket 3 and a second gasket 4 are sequentially arranged between the long limit block 13 and the mounting block 21. One side of the first gasket 3 is in contact with the inner side of the long limit block 13, the other side of the first gasket 3 is in contact with one side of the second gasket 4, and the other side of the second gasket 4 is in contact with the inclined surface 23 of the mounting block 21. An inclined surface 23 is arranged on one side of the mounting block 21, so that the knife clamping impact plate 6 impacts the long limit block 13 of the limit plate 1. By adjusting the first gasket 3 and the second gasket 4, it is ensured that the surface of the knife clamping impact plate 6 impacts the surface of the long limit block 13. The limit plate 1 tilts towards the side of the mounting plate 22, ensuring that the limit plate 1 does not tilt towards the pressing plate 5, preventing the pressing plate 5 from deforming or loosening, thereby extending the service life of the knife clamping limit mechanism, and the knife clamping limit mechanism is stable and reliable.

[0035] Working principle

[0036] When the knife clamp 20 is opened, the hydraulic cylinder 7 contracts, driving the knife clamp 20 to rotate to the left. The knife clamping impact plate 6 on the knife clamp 20 impacts the long limit block 13 of the limit plate 1. By adjusting the first gasket 3 and the second gasket 4, it is ensured that the surface of the knife clamping impact plate 6 impacts the surface of the long limit block 13; when the knife clamp 20 is closed, the hydraulic cylinder 7 stretches, driving the knife clamp 20 to rotate to the right, and the knife clamp 20 moves away from the limit plate 1.

[0037] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A knife clamping and limiting mechanism, characterized in that: It includes a main frame (10), a clamping tool (20) and a hydraulic cylinder (7). One end of the hydraulic cylinder (7) is connected to one end of the main frame (10), and the other end of the hydraulic cylinder (7) is connected to the upper end of the clamping tool (20). The upper part of the clamping tool (20) is rotatably connected to the other end of the main frame (10). An installation seat (2) is arranged on the main frame (10), and the installation seat (2) is arranged on one side of the clamping tool (20). A limiting plate (1) is arranged on the installation seat (2), and the limiting plate (1) is connected to one side of the installation seat (2) through a pressing plate (5).

2. The knife clamping and limiting mechanism according to claim 1, characterized in that: A hydraulic cylinder support (17) is arranged on the side surface of one end of the main frame (10), and one end of the hydraulic cylinder (7) is connected to the hydraulic cylinder support (17).

3. The clamping tool limiting mechanism according to claim 1, characterized in that: The clamping tool (20) is rotatably connected to the side surface of the other end of the main frame (10) through a rotating shaft (11), and a clamping tool impact plate (6) is arranged on one side of the upper end of the clamping tool (20).

4. A knife clamping and limiting mechanism according to claim 1, characterized in that: The installation seat (2) includes an installation block (21) and an installation plate (22). One side of the installation block (21) is set as an inclined surface (23), one end of the installation plate (22) is connected to one end of the inclined surface (23), a first connection hole (24) is arranged on the installation block (21), and the pressing plate (5) is arranged on one side of the installation block (21).

5. The clamping tool limiting mechanism according to claim 4, characterized in that: The first screw (8) passes through the pressing plate (5) and the first connection hole (24) of the installation block (21), and connects the pressing plate (5) and the installation block (21) to the main frame (10).

6. The clamping tool limiting mechanism according to claim 1, wherein: The limiting plate (1) includes a long limiting block (13) and two short limiting blocks (14). The two short limiting blocks (14) are respectively connected to one side of both ends of the long limiting block (13). A second connection hole (15) is arranged on the long limiting block (13), and the upper end of the long limiting block (13) is set as an inclined surface (16).

7. The clamping tool limiting mechanism according to claim 6, characterized in that: The inner side of the long limiting block (13) is in contact with the inclined surface (23) of the installation block (21), and one side of the long limiting block (13) is in contact with the inner side of the installation plate (22). The inner sides of the two short limiting blocks (14) are respectively in contact with both sides of the installation plate (22).

8. The clamping tool limiting mechanism according to claim 6, characterized in that: The second screw (9) passes through the pressing plate (5), the second connection hole (15) of the long limiting block (13) and the installation plate (22), and connects the pressing plate (5), the long limiting block (13) and the installation plate (22) to the main frame (10). A gap is arranged between the pressing plate (5) and the long limiting block (13).

9. The clamping tool limiting mechanism according to claim 6, wherein: A first gasket (3) and a second gasket (4) are sequentially arranged between the long limiting block (13) and the installation block (21). One side of the first gasket (3) is in contact with the inner side of the long limiting block (13), the other side of the first gasket (3) is in contact with one side of the second gasket (4), and the other side of the second gasket (4) is in contact with the inclined surface (23) of the installation block (21).

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